One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,12)(3,13,10,16)(4,15,5,9)(6,14,8,11)(17,18,21,30,23,20,22,26)(19,27,31,25,29,32,28,24)(1,3,7,10)(2,5,12,4)(6,9,8,15)(11,16,14,13)(17,19,23,29)(18,24,20,25)(21,31,22,28)(26,32,30,27)(1,4,7,5)(2,9,12,15)(3,14,10,11)(6,16,8,13)(17,19,23,29)(18,25,20,24)(21,28,22,31)(26,32,30,27)(1,5,7,4)(2,10,12,3)(6,16,8,13)(9,11,15,14)(17,20)(18,23)(19,24)(21,26)(22,30)(25,29)(27,31)(28,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.